Is apparel a verb?
No, verb means an action. Apparel is a noun, person, place, thing, or idea.
No, the noun 'clothes' is a plural uncountable noun, a word for wearing apparel. The singular noun for wearing apparel is the gerund 'clothing' (the present participle of the verb to clothe), a singular uncountable noun. The singular form of the noun 'clothes' is cloth, a word for fabric not wearing apparel.